Putting the window down, absolutely no problem. Putting the window up, it will "bounce", if that makes any sense. It will come part way up and stop. When the window is all the way down, I have to take a pair of pliers, put a slight bit of up pressure with the pliers and the window goes right up. When I am putting a slight bit of "up" pressure with the pliers and push the "up" switch, no problem. any help would be greatly appreciated. Thanks, Bill p.s. I don't notice any cocking when the window is coming up.